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(No Model.) 5 Sheets-Sheet 1.

R. OROMPTON.

APPARATUS FOR DYEING AND DRYING TISSUE AND OTHER PAPER.- No. 397,069. APatented Jan. 29, 1889.

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APPARATUS FOR DYE'ING AND DRYING TISSUE AND OTHER PAPER. No. 397,069;

' Patented Jan. 29, 1889.,

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(No Model.) 5 Sheets-Sheet 3.

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(Nb Model.) 5 Sheets-Sheet 4".

R. GROMPTON. APPARATUS FOR DYBING AND DRYING TISSUE AND OTHER PAPER.

Patented Jan. 29, 1889].

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(No Model.) 5 Sheets-Sheet 5.

I R. CROMPT'ON. APPARATUS FOR DYEING AND DRYING TISSUE-AND OTHER PAPER.

No. 397,069. Patented Jan. 29, 1889.

UNTTE STATES ATENT @rrrcn.

RALPH CROMPTON, OF ELTON, NEAR BURY, COUNTY OF LANCASTER, ENGLAND.

APPARATUS FOR DYEING AND DRYING TISSUEAND OTHER PAPER.

SPECIFICATION forming part of Letters Patent No. 397,069, dated January29, 1889.

Application filed March 7, 1888- Serial No. 266,479. (No model.)

To all whom it may concern.-

Be it known that I, RALPH CROMPTON, a subject of the Queen of GreatBritain, and a resident of Elton, near Bury, in the county of Lancaster,England, manufacturer, have invented certain new and useful Improvementsin Apparatus for Dyeing Tissue and other Paper, of which the followingis a specification, reference being had to the accompanying drawings.

My invention relates to an improved apparatus for treating tissue andother paper in continuous rolls, after manufacture, with varioussolutions, chemicals, coloring-matter or dyes, and then drying the same.The invention is applicable to the manufacture of tracing-paper,water-proof paper, cheek-paper, and almost any kind that requireschemical treatment after manufacture.

The invention may also be applied to the paper-making machine, in whichcase the coloring or inordanting rolls may be placed in a suitableposition between the dryingcylinders or between two sets ofdrying-cyliniilers, or replacing the so-called intermediate calender,the paper being dried, or nearly so, by the first set of cylinders, and,after being treated, finally dried by the second set of cylinders.

Hitherto it has only been possible to treat tissues and thin papers inthe web with solutions at considerable expense, owingto the great wasteof materials used through the paper breaking so frequently and othercauses. By my invention it is possible to impregnate a roll oftissue-paper with a chemical solution or dye and dry the Jame, (withoutinjury to the colors,) and without any appreciable waste of paper,solution, or dye. Brighter and darker shades may be prod need by myapparatus than by any other.

According to this invention, I pass the tissue or other paper in. avertical. direction, or nearly so, down between two messing-rollscovered with felt, cloth, or other suitable porous substance, andsuitably supplied with dye and serving to more or less impregnate thepaper with the coloring-matter, while removing the surplus of same. Forsome kinds of paper the rolls may be covered with rubher or othersimilar substance and used without the felt covering, or one metal rolland one rubber-covered roll maybe used together. It will thus beunderstood that the dyeing, pressing, and removing the surplus solutionare performed in one operation and byone pair of rolls. I may by similarmeans apply a mordant to the tissue or other paper before or afterapplying the die, and by preference in the same machine.

By the aforesaid arrangement I avoid the need for special means ofsupport to the wet tissue-paper. The paper thus far treated is thenpassed unsupported through a drying apparatus arranged close to thepressing-rolls or (in case of mordanting as well as dyeing) the lastpair of pressing-rolls.

Figure 1 of the accompanying drawings is a part sectional elevation ofone form of apparatus for mordanting or dyeing tissue and other paper.Fig. 2 is a similar view of the principal parts of another form of theapparatus; and Figs. 2 $13 and 3 form a similar view of a completeapparatus for mordanting, dyeing, and drying tissue and other paper. Thefigure is shown in continuation on Sheets 2, 3, a, and 5, one part beingshown on each sheet, beginning on the left and continuing on toward theright.

In the form of apparatus shown in Fig. 1 I employ two metal or woodrollers, C O, covered with felt, cloth, or other suitable absorbentmaterial, or two rubber-covered rollers, or one metal and onerubber-covered roller. These rollers are placed at or about the samelevel, or one raised slightly above the other. The rolls are mounted insuitable frames with screw or lever pressure arrangement at each end,and are caused to revolve inward. The I solution for mordanting orchemically treat= ing or the dye for coloringis run between the nip orpoint of contact of the rollers C C from a tank, F, by the pipe G,terminating in the perforated pipe G, or other suitable appliance placedabove, or it may, as shown in the part elevation, Fig. 2, be supplied tothe feltcovcred rollers C C by means of feed-rollers N N, revolving indye-troughs 0 O, or by any other suitable methods.

The paper, A, to betreated or dyed is drawn oil from a continuous roll,and by preference passed over a guide-roll, I placed above thelfelt-eovered rollers (f. It then enters be tween the nip olf thep1.'essurerollers C By this means the paper passes through a smalliplantity of solution lying just above the nip ol' the pressure-rollers,and immediately afterward receives the pressure of the rollers andbecomes impregnated. I thus do away with the neel; sity .l'or emllesssupporiing-bands for the wet tissue-paper. The surplus sohr tion or dyeruns oil at each end of the press ure-rolls and is caught by areeeiveror trough, II, placed underneath, from which it flows into themain tank, so that it maybe used over again. The bulk of the solution inFig. 1. placed in a doubh-i-cased tank, I), which may be steam-heated ornot below the pressure-rollers, and is pumped up, for instance, by apump, E, and pipe E into a small box, F, abm'e,lron1 which it issupplied to the rollers, the box having an overflowpipe, 1, into themain tank I), so as to keep up a regular pressure and make the actioncontinual.

The solution need notbc run onto the pressure-rollers in such quantitiesas to form a bath above the nip, but just sullieient may be used tomoisten the felt covers 011 the rollers, the result obtained beingalmost the same. Felt-('(wered doctors 1 P, as shown in Fig. i, or othersuitable means, may be applied to the pressure-rolls to keep back thesurplus liquid.

'lhepressure on the ends of the rollers may be so regulated. as not topress the dye right lhrough the paper, but may he worked to color it onthe surface only or to any desired degree of penetration.

I11 eoloringI sonnetimes employ two pairs of :l'elt, rubber, or othercovered rollers, as shown in Figs. 3, 3, 3, and 3, which form a sideview of a (@OlllPlGiiG mordanting, dyeing, and drying apparatus, the onepair Q Q to impart the mordant and the other pair, 0 C, the dye to thepaper. Sometimes I dry the paper after mordanting and before coloring,and I prefer to do this by a stea111 -heated cylinder, I], placedbetween or above the two pairs oi. pressing-rolls and provided with theusual endless lelt, M. Alter the paper has pa 1d through the nip ol thepressure-rollers 1 is taken oft at one side and conducted unsupporteddirect to a drying appliance consisting, by 'n-el'erenee, of a system ofair-drinns (with interior fans) and s"ea1n-l1eated dryingylinders,(fitted in the usual manner with d rying-l'elts).

K K are the air-drums, and L L the steamheated drying-cylinders, withthe usual dryingfelts, M. By this arrangement the paper may, if desired,be dried entirely by air, (the cylinders I1 beingthen used cold andserving merely to keep the paper flat and tree from cocl 'les,) or maybe dried partly by the airdrums and partly by the steanrheatedcylinders. 13y drying thus by the air-drums and steam-cylinders combinedI greatly preseiwe the color and add to the brillianey of the tints; butfor some tints I find it better to use the cylinders eold. After thepaper has passed through the drying apparatus it is reeled 11p in theordinary manner, passingtwer the roll It to the reel-shaft T.

The lelts M are used to simply press the 1a 1er a ainst the e dinder Lto absorb a 101'- tion ol the moisture and keep the web ot' paper ii atwhile the moisture is being expelled by the heat of the cylinder, saidfelts being made of thick woolen nmlterial.

The air-dru1ns K are skeleton. eyli nders with wooden ribs across toSUPPO'll) the paper web, and within said cylinders are arranged fans toblow airagainst the web oilj'paper, and thus assist in drying the same,so as to avoid the necessity of applying great heat.

Ilaving liullydescribedmy invention, whatl desire to claim, and secureby Letters Patent, is

1. In an apparatus ol. the class described, the combination,with asingle pair ol impregnating-rolls covered with an absorbent material,and means, such asdeseribed, for supplying the rolls with the mordant ordye, of a heated. dryingwiylinder, the endless li'elt M, and theskeleton a ir-drums K, substantially as and for the purposes speeilied.

2. In an ap aratus of the elass described, the combi nation, with a single pair of 111 ordanting-rolls eovered with an absorbent material andarranged side by side and opm'ating to draw the web o'l paper betweenthem in. substantially a vertical direction, a single pair ofdyeing-rolls, also covered with an absorbent material andoptnating onthe paper weblike the mordant ing-rol ls, and means li'orsupplying saidrolls with a mordant and dye respeetively, ol. a drying-cylinderarranged between the mordant-ing and dyeing rolls in a higher plane thaneither, substantially as and for the purposes s1i1eeilied.

3. In an apparatus ol. the class described, the combination, with asingle pair ol' 1nordanting-rolls eovered with an absorbent 111aterialand arranged side by side and operating to draw the web of paper betweenthem. in sub stant iallya vertiez'tl direction, a single pair ofdyeing-rolls, also covered with an absorbent material and operating onthe paper web like the mordan tin g-rolls, and means for supplying saidrolls with a monlant: and dye respectively, of a d rying-eylinderarranged between the mordanting and dyeing rolls in a higher plane thaneither, and the endless .ltelt M, substantially as and for the pin-posesspecified.

4-. In an apparatus of the class described, the combination, with asinglepair oii' mordanting-rolls covered with an absorbent material andarranged side by side and. operating to draw the web of paper betweenthem in substantially a vertical direction, a sin gle pair ofdyeing-rolls, also eoverecl with an absorbent series of air-drums K,substantially as and for material and operating on the paper Web likethe purposes specified. themortlanting-rolls, and means for supplyingRALPH (ROMPTON' sanl rolls with a mordant and dye respectively, of adrying-cylinder arranged between itnesses:

the momlai'iting' and dyeing rolls in a higher DAVID MCGAW plane thaneither, the endless felt M, and the \VALTER J. SKERTEN.

